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  2. John Innes compost - Wikipedia

    en.wikipedia.org/wiki/John_Innes_compost

    The potting mixes are used to grow different types of plants depending on their nutrient requirements. [1] All three potting mixes have the same soil component: 7 parts sterilised loam; 3 parts peat; 2 parts sharp sand [5] They each contain ground limestone, and varying quantities of the same base fertiliser mix: 2 parts hoof and horn; 2 parts ...

  3. Carbon-to-nitrogen ratio - Wikipedia

    en.wikipedia.org/wiki/Carbon-to-nitrogen_ratio

    The C:N ratio of soil can be modified by the addition of materials such as compost, manure, and mulch. A feedstock with a near-optimal C:N ratio will be consumed quickly. Any excess C will cause the N originally in the soil to be consumed, competing with the plant for nutrients (immobilization) – at least temporarily until the microbes die.

  4. Nitrogen deficiency - Wikipedia

    en.wikipedia.org/wiki/Nitrogen_deficiency

    Nitrogen deficiency is a deficiency of nitrogen in plants. This can occur when organic matter with high carbon content, such as sawdust, is added to soil. [1] Soil organisms use any nitrogen available to break down carbon sources, making nitrogen unavailable to plants. [1] This is known as "robbing" the soil of nitrogen.

  5. How to Grow a Lemon Tree in a Pot: 12 Expert Tips for Success

    www.aol.com/grow-lemon-tree-pot-12-205500130.html

    Lemons prefer a soil pH of 6.0 to 6.5, lower than most potting soil mixes. If the soil pH is wrong, the lemon tree will not be able to absorb the nutrients it needs from the soil.

  6. How To Garden with Perlite Potting Soil - AOL

    www.aol.com/lifestyle/garden-perlite-potting...

    Soil mixes. Buy it pre-mixed into soils at a garden center, or make your own by mixing up to one-third part perlite with your soil. For succulents and orchids, you can use more.

  7. Potting soil - Wikipedia

    en.wikipedia.org/wiki/Potting_soil

    A flowerpot filled with potting soil. Potting soil or growing media, also known as potting mix or potting compost (UK), is a substrate used to grow plants in containers. The first recorded use of the term is from an 1861 issue of the American Agriculturist. [1] Despite its name, little or no soil is usually used in potting soil.

  8. Organic fertilizer - Wikipedia

    en.wikipedia.org/wiki/Organic_fertilizer

    [38] [39] A University of North Carolina study found that potential mineralizable nitrogen (PMN) in the soil was 182–285% higher in organic mulched systems than in the synthetics control. [40] There do exist 'fast-release' organic fertilizers with a risk of fertilizer burn. These include uncomposted animal manures, fish emulsion, blood meal ...

  9. Soil conditioner - Wikipedia

    en.wikipedia.org/wiki/Soil_conditioner

    The soil stabilization technique of low pressure chemical permeation grouting has also been used for high rise foundation underpinning as an alternative to pile foundations at a residential development over the East River landfill. Pressure grouting can be difficult to apply correctly at sites with waste materials or heterogeneous and coarse soils.

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